# perlopenbsd - Perl version 5 on OpenBSD systems - man(1) - [phpMan]


*Source: tldr-pages*

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[_PERLOPENBSD_(1)](https://www.chedong.com/phpMan.php/man/PERLOPENBSD/1/markdown)                    Perl Programmers Reference Guide                    [_PERLOPENBSD_(1)](https://www.chedong.com/phpMan.php/man/PERLOPENBSD/1/markdown)

## NAME
       perlopenbsd - Perl version 5 on OpenBSD systems

## DESCRIPTION
       This document describes various features of OpenBSD that will affect how Perl version 5
       (hereafter just Perl) is compiled and/or runs.

### OpenBSD core dumps from getprotobyname_r and getservbyname_r with ithreads
       When Perl is configured to use ithreads, it will use re-entrant library calls in preference
       to non-re-entrant versions.  There is an incompatibility in OpenBSD's "getprotobyname_r" and
       "getservbyname_r" function in versions 3.7 and later that will cause a SEGV when called
       without doing a "bzero" on their return structs prior to calling these functions.  Current
       Perl's should handle this problem correctly.  Older threaded Perls (5.8.6 or earlier) will
       run into this problem.  If you want to run a threaded Perl on OpenBSD 3.7 or higher, you will
       need to upgrade to at least Perl 5.8.7.

## AUTHOR
       Steve Peters <<steve@fisharerojo.org>>

       Please report any errors, updates, or suggestions to <<https://github.com/Perl/perl5/issues>>.

perl v5.38.2                                 2026-08-18                               [_PERLOPENBSD_(1)](https://www.chedong.com/phpMan.php/man/PERLOPENBSD/1/markdown)